Unit 3 pp #5

Global Climate Change ,[object Object],[object Object]

GLOBAL CLIMATE CHANGE What is it?

Global Climate Change ,[object Object],[object Object],[object Object]

What causes Earth’s climate to change? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What are greenhouse gases? Any gases that cause the “greenhouse effect!” carbon dioxide nitrous oxide methane Imagine… a car on a cool but sunny day… water vapor

GLOBAL CLIMATE CHANGE Who's researching it?

Research ,[object Object],[object Object]

Intergovernmental Panel on Climate Change (IPCC) ,[object Object],[object Object],[object Object]

Intergovernmental Panel on Climate Change (IPCC) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Dr. Susan Solomon, a NOAA atmospheric chemist, an IPCC member and one author of IPCC summary

Intergovernmental Panel on Climate Change (IPCC) ,[object Object],[object Object],[object Object],[object Object]

GLOBAL CLIMATE CHANGE Well, what does the data say?

Warming of Climate ,[object Object],[object Object],[object Object],[object Object]

Temperature Change Data 1880-1884

Other Observed Changes and Effects ,[object Object],[object Object],[object Object]

Human-Produced Greenhouse Gas Levels

Most of the observed increase in global average temperature since the mid-20 th century is very likely due to the observed increase in human-caused greenhouse gas concentrations and human influences have very likely contributed to sea level rise, too.

References ,[object Object],[object Object],[object Object],[object Object],[object Object]

Unit 3 pp #5

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